Question: Which political party was Imre Nagy a member in 1948?
Paraphrase: Name the political party that Imre Nagy was a member of in 1948.
SPARQL (Wikidata): SELECT ?obj WHERE { wd:Q177917 p:P102 ?s . ?s ps:P102 ?obj . ?s pq:P580 ?x filter(contains(YEAR(?x),'1948')) }